İSTE Yazarı "Akgöl, Oğuzhan" Makale Koleksiyonu İçin Listeleme
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Microfluidic sensor applications by using chiral metamaterial
Dalgaç, Şekip; Bakır, Mehmet; Karadağ, Faruk; Karaaslan, Muharrem; Akgöl, Oğuzhan; Ünal, Emin; Sabah, Cumali (World Scientific Publishing Company, 2020)Chiral metamaterial-based sensor is designed for sensing the change in substance ratio of chemical substances when combined with distilled water. These samples have been prepared with 10%, 50% and 90% volume fraction of ... -
Microwave absorption performance of hexagonal nano boron nitride doped basalt fabric-reinforced epoxy composites
Bakal, Fatma; Yapıcı, Ahmet; Karaaslan, Muharrem; Akgöl, Oğuzhan (Emerald Group Publishing Ltd., 2021)Purpose: The purpose of this paper is to investigate the effect of doping element on the microwave absorption performance of hexagonal nano boron nitride (h-nBN)-reinforced basalt fabric (BF)/epoxy composites. A new type ... -
Microwave energy harvesting based on metamaterial absorbers with multi layered square split rings for wireless communications
Karaaslan, Muharrem; Bağmancı, Mehmet; Ünal, Emin; Akgöl, Oğuzhan; Sabah, Cumali (Elsevier, 2017)We propose the design of a multiband absorber based on multi-layered square split ring (MSSR) structure. The multi-layered metamaterial structure is designed to be used in the frequency bands such as WIMAX, WLAN and satellite ... -
Microwave metamaterial absorber for sensing applications
Bakır, Mehmet; Karaaslan, Muharrem; Ünal, Emin; Akgöl, Oğuzhan; Sabah, Cumali (Elsevier, 2017)A metamaterial absorber (MA) based sensor is designed and analysed for various important applications including pressure, temperature, density, and humidity sensing. Material parameters, as well as equivalent circuit model ... -
Microwave power imaging detector based on metamaterial absorber
Alkurt, Fatih Özkan; Altıntaş, Olcay; Bakır, Mehmet; Karaaslan, Muharrem; Ünal, Emin; Karadağ, Faruk; Akgöl, Oğuzhan; Sabah, Cumali (SPIE, 2020)Our paper presents the design, fabrication, and characterization of metamaterial absorber-based microwave imaging detector that is operating in industrial, scientific, and medical (ISM) band. The results reveal that the ... -
Monopole antenna integrated cavity resonator for microwave imaging
Alkurt, Fatih Özkan; Karaaslan, Muharrem; Furat, Murat; Ünal, Emin; Akgöl, Oğuzhan (SPIE, 2021)We present a system that displays an image of any metal structure in a scene by the use of microwave radiation from a cavity resonator in a 10-GHz frequency band. An 80 mm x 80 mm mushroom-like electromagnetic band gap ... -
A monopole microwave-assisted electrochemical sensor for the detection of liquid chemicals
Karatepe, Ayşegül; Akgöl, Oğuzhan; Abdulkarim, Yadgar I.; Dalgaç, Şekip; Awl, Halgurd N.; Muhammadsharif, Fahmi F.; Karaaslan, Muharrem; Ünal, Emin; Saeed, Salah Raza; Luo, Heng; Huang, Shengxiang (S.C. Virtual Company of Phisics S.R.L, 2021)In this paper, a new sensor structure is presented based on a printed circuit board (PCB) monopole antenna with operating frequency of f=2 GHz. Numerical investigation was performed in order to determine the ethanol alcohol ... -
Multi-band polarization independent cylindrical metamaterial absorber and sensor application
Dinçer, Furkan; Karaaslan, Muharrem; Çolak, Şule; Tetik, Erkan; Akgöl, Oğuzhan; Altıntaş, Olcay; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd, 2016)A multi-band perfect metamaterial absorber (MA) based on a cylindrical waveguide with polarization independency is numerically presented and investigated in detail. The proposed absorber has a very simple configuration, ... -
Multifunctional metamaterial sensor applications based on chiral nihility
Bakır, Mehmet; Karaaslan, Muharrem; Akgöl, Oğuzhan; Sabah, Cumali (Springer, 2017)In this paper, chiral nihility based pressure, density, temperature and moisture content metamaterial sensor applications are investigated in detail. A "chiral nihility'' medium in which both the permittivity and the ... -
Multipurpose chemical liquid sensing applications by microwave approach
Karatepe, Ayşegül; Akgöl, Oğuzhan; Abdulkarim, Yadgar I.; Dalgaç, Şekip; Muhammadsharif, F.F.; Awl, Halgurd N.; Deng, Lianwen; Ünal, Emin; Karaaslan, Muharrem; Heng, Luo; Huang, Shengxiang (Public Library of Science, 2020)In this work, a novel sensor based on printed circuit board (PCB) microstrip rectangular patch antenna is proposed to detect different ratios of ethanol alcohol in wines and isopropyl alcohol in disinfectants. The proposed ... -
Mutual Coupling Reduction of Cross-Dipole Antenna for Base Stations by Using a Neural Network Approach
Özdemir, Ersin; Akgöl, Oğuzhan; Alkurt, Fatih Özkan; Karaaslan, Muharrem; Abdulkarim, Yadgar I.; Deng, Lianwen (Mdpi, 2020)In this manuscript, a resonator layer is presented for the purpose of reducing the mutual coupling effect between each antenna element of a cross dipole antenna. In design processes, an artificial neural network approach ... -
New generation chiral metamaterials based on omega resonators with small and smooth chirality over a certain frequency band
Dinçer, Furkan; Akgöl, Oğuzhan; Karaaslan, Muharrem; Ünal, Emin; Demirel, Ekrem; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd, 2016)In this paper, we have designed, simulated and analyzed a new generation chiral metamaterials (MTMs) with two geometries. There are various types of chiral MTM structures in the literature and almost all of them are indented ... -
New generation chiral metamaterials with small and flat chirality over a certain frequency band based on circular split ring resonators for microwave filter applications
Dinçer, Furkan; Akgöl, Oğuzhan; Karaaslan, Muharrem; Ünal, Emin; Demirel, Ekrem; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd, 2016)There are many studies in literature on chiral metamaterials (MTMs) to obtain large chiralities with dynamic optical activities. With this regard, this new generation planar chiral MTM study focuses on a small, non-dispersive ... -
A Nondestructive Method for Determining Fiber Content and Fiber Ratio in Concretes Using a Metamaterial Sensor Based on a V-Shaped Resonator
Akgöl, Oğuzhan; Ünal, Emin; Bağmancı, Mehmet; Karaaslan, Muharrem; Sevim, Umur Korkut; Öztürk, Murat; Bhadauria, Avanish (Springer, 2019)A micro sensor based on a V-shaped resonator (VSR) is implemented for the purpose of determining fiber content and ratio in construction materials as a nondestructive method. Concrete is investigated as the construction ... -
Octagonal Shaped Metamaterial Absorber Based Energy Harvester
Alkurt, Fatih Özkan; Altıntaş, Olcay; Bakır, Mehmet; Tamer, Ahmet; Karadağ, Faruk; Bağmancı, Mehmet; Karaaslan, Muharrem; Ünal, Emin; Akgöl, Oğuzhan (Kaunas University of Technology, 2018)In this study, a novel octagonal shaped metamaterial based broadband absorber is proposed for energy harvesting at WIMAX wireless communication band. The proposal has an absorption of 99.97 % at 5.5 GHz with a bandwidth ... -
PCB mikroşerit dipol ve monopol antenlerin kullanıldığı çok portlu sistemlerde metamalzeme ile yalıtımın iyileştirilmesi
Akgöl, Oğuzhan (2018)Bu çalışmada, dipol ve monopol antenlerin bulunduğu iki portlu anten sistemlerindeki izolasyonuniyileştirilmesi gerçeklenmiştir. Bu amaç için 2.4 GHz ve 6 GHz frekanslarında çalışan dipol antenler ile2.438 GHz ve 1.706 GHz ... -
Phase (1T/2H) dependent electromagnetic wave absorbing performance of flower-like MoS2 nanosheets
Aka, Cemal; Kıvrak, Burak; Tekşen, Fikret Alpay; Akyıldız, Hasan; Akgöl, Oğuzhan; Karaaslan, Muharrem; Akyol, Mustafa (Elsevier, 2023)A study was carried out to determine the phase-dependent electromagnetic wave (EMW) absorption performance of MoS2 particles via systematically diversified hydrothermal synthesis conditions such as time, temperature, ... -
Polarization angle independent metamaterial absorber based on circle-shaped resonators with interference theory
Dinçer, Furkan; Karaaslan, Muharrem; Akgöl, Oğuzhan; Ünal, Emin; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd, 2015)We theoretically and numerically designed a perfect metamaterial absorber at microwave frequencies. The proposed design has a very simple geometry, wide band properties and provides perfect absorption for all polarization ... -
Polarization independent broadband metamaterial absorber for microwave applications
Bağmancı, Mehmet; Akgöl, Oğuzhan; Özaktürk, Melikşah; Karaaslan, Muharrem; Ünal, Emin; Bakır, Mehmet (John Wiley and Sons Inc., 2019)A new polarization independent broadband metamaterial absorber (MA) structure based on split ring resonators which are loaded with lumped elements and via connection lines is proposed. The designed structure shows a perfect ... -
Prevention of Wave Propagation via Circular Arrangement of Seismic Metamaterials Formed with Concrete Piles
Kaçın, Selçuk; Özturk, Murat; Sevim, Umur Korkut; Karaaslan, Muharrem; Akgöl, Oğuzhan; Özer, Zafer; Demirci, Mustafa; Ünal, Emin; Mert, Bayram Ali; Alkurt, Maide Erdoğan; Alkurt, Fatih Özkan; Başar, Mustafa Tunahan (MDPI, 2023)It is known that the low frequencies of seismic surface waves have a destructive effect. The main purpose of seismic metamaterials is to protect structures from seismic waves at low frequencies, especially in a wide band. ...